I am new to c++ so I want to ask is it possible to make an array of pair in c++ just like we create a vector of pair.
int n;
cin>>n;
array < pair <int,int> >v[n];
I am trying to make array like this but not getting positive results.
It looks like you are trying to dynamically allocate an array of std::pair<int,int>. Prefer std::vector for such a task:
#include <iostream>
#include <utility>
#include <vector>
int n;
std::cin >> n;
std::vector<std::pair<int,int>> v{n};
As to your original question, you can create arrays of std::pair<int,int>, either C-style arrays or std::arrays. However, you will need to know the size at compile-time:
int n;
std::cin >> n;
//C-style arrays
std::pair<int,int> a[n]; //this may work on some compilers, but is non-standard behaviour
//std::arrays
#include <array>
std::array<std::pair<int,int>,n> a; //this will not compile at all, "n" must be known at compile-time